Shares of the following companies are having unusual moves in U.S. trading this morning.

AES Corp. (AES US) rose 4.8 percent to $13.07 after jumping as much as 6.4 percent, the most intraday since July 7. The Arlington, Virginia-based power utility company with operations in 28 countries agreed to buy DPL Inc. for $3.5 billion in cash, adding more than 500,000 customers in Ohio.

Amphenol Corp. (APH US) rose 7.1 percent to $55.25 after gaining as much as 9.3 percent, the most intraday since April 2009. The maker of electronic and fiber optic connectors and cable forecast second-quarter sales of at least $985 million, beating the average analyst estimate of $979.8 million in a Bloomberg survey.

Autoliv Inc. (ALV US) climbed 8 percent to $78.40 and advanced 8.4 percent earlier, the most intraday since May 10. The world’s biggest producer of automotive seatbelts and air bags reported first quarter adjusted earnings of $1.93 a share, beating the average analyst estimate of $1.74.

Bancorp Rhode Island Inc. (BARI US) surged 45 percent to $44.43 and rallied as much as 52 percent, the most intraday since March 1998. The company for Bank Rhode Island agreed to be bought by Brookline Bancorp Inc. (BRKL US) for $234 million in cash and stock. Brookline fell 8 percent to $9.26.

Cree Inc. (CREE US) declined 4.2 percent to $39.08 and slipped to $38.88 earlier, the lowest intraday price since October 2009. The maker of energy-efficient lighting products said earnings for the fiscal fourth quarter will be no more than 31 cents a share. That compares with the average analyst estimate of 35 cents, according to Bloomberg data.

Doral Financial Corp. (DRL US) advanced 32 percent to $1.37 after soaring as much as 42 percent, the most intraday since August 2009. The Puerto Rico bank holding company said it earned 1 cent a share in the first quarter. Two analysts surveyed by Bloomberg both estimated a loss of 14 cents.

Golar LNG Ltd. (GLNG US) rose 14 percent to $29.82 and rallied to $30.32 earlier, the highest intraday price since December 2002. The liquefied natural gas shipping line said it doesn’t need to raise additional equity to fund the construction of new carriers.

Hanesbrands Inc. (HBI US) gained 9.2 percent to $31.81 and rallied to $32.49 earlier, the highest intraday price since June 2008. The maker of Playtex and Hanes underwear forecast earnings in 2011 will be as much as $2.90 a share, topping the $2.71 average estimate of analysts.

Piper Jaffray Cos. (PJC US) declined 6.2 percent to $35.58 after sliding as much as 9 percent, the most intraday since May 6. The Minneapolis-based brokerage posted first-quarter profit of 38 cents a share excluding some items, trailing the average analyst estimate in a Bloomberg survey by 27 percent.

Polaris Industries Inc. (PII US) jumped 20 percent to $108.96 and rallied to $109.61 earlier, the highest intraday price since 1987. The snowmobile maker forecast earnings in 2011 will be at least $5.53 a share, topping the average analyst estimate of $4.87.

Red Hat Inc. (RHT US) gained 5.7 percent to $47.66 and climbed to $48.15 earlier, the highest intraday price since Dec. 21. The largest seller of the Linux operating system is likely to benefit from Attachmate Corp.’s acquisition of Novell Inc. (NOVL US), Piper Jaffray Cos. said in a note to clients, citing a survey of Red Hat’s partners.

Separately, Susquehanna Financial Group said International Business Machines Corp.’s (IBM US) first-quarter results from the software business have “positive” implications for companies like Red Hat and Salesforce.com Inc. (CRM US). Salesforce.com, the largest supplier of customer-management software, jumped 7.6 percent to $140.40.

Textron Inc. (TXT US) fell 2.9 percent to $25.03 and slipped to $24.47 earlier, the lowest intraday price since Jan. 11. The maker of Cessna planes and Bell helicopters reported earnings from continuing operations in the first quarter were 10 cents a share, missing the average analyst estimate of 17 cents.

United Technologies Corp. (UTX US) rose 4.1 percent to $85.71 and climbed to $86.43 earlier, the highest intraday price since at least 1980. The maker of Pratt & Whitney jet engines said 2011 sales will be at the high end of its forecast buoyed by demand for Carrier air conditioners and refrigeration.

VMware Inc. (VMW US) rallied 13 percent to $97.07 for the biggest increase in the Russell 1000 Index. The biggest maker of programs that let computers run multiple operating systems reported first-quarter profit that topped analysts’ estimates as it benefited from a foray into storage and desktop software.

San Francisco-based Wells Fargo & Co. (WFC US) fell the most in the Standard & Poor’s 500 Index, sinking 4.4 percent to $28.75. The largest U.S. home lender said first-quarter revenue fell 5.2 percent to $20.3 billion as fees from mortgage banking declined and average loans outstanding decreased.

Wynn Resorts Ltd. (WYNN US) rose 6.1 percent to $147.43 after jumping to $148.87 earlier, the lowest intraday price since November 2007. The owner of the Wynn and Encore casinos reported first-quarter profit rose sixfold, beating analysts’ estimates, lifted by a second Macau resort and improved results in Las Vegas.

Sunnyvale-baed Yahoo Inc. (YHOO US) increased 5.6 percent to $17.02 and rose 6.9 percent earlier, the most intraday since Nov. 9. The most-visited U.S. Web portal reported first-quarter sales that topped estimates as companies stepped up their use of Internet advertising.

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